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Organizations Warned of Cisco Secure FMC Exploitation

Cisco and CISA warn that critical FMC authentication bypass CVE-2026-20079 is actively exploited; CISA added it to the KEV catalog with a September 12 deadline.

Cisco and CISA flagged active exploitation of CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center allowing remote, unauthenticated attackers to run malicious scripts and gain root access via crafted HTTP requests. Cisco patched the flaw in early March and added IoCs in late July, but confirmed active exploitation in its September 9 advisory; CISA added it to the KEV catalog requiring federal remediation by September 12. Talos identified three activity clusters exploiting CVE-2026-20079 and CVE-2026-20316, including state-sponsored and financially motivated actors, and this is the third FMC vulnerability in KEV this year after CVE-2026-20316 and CVE-2026-20131.

SecurityWeek·updated Sep 14, 09:27 UTC · 2d ago·first Sep 10, 10:06 UTC · 6d agoExploit / PoC in the wild 9 sourcesCVE-2026-20079CVE-2026-20316CVE-2026-20131

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Workflow session email approval process bypass

Fortinet disclosed an improper access control flaw (CVSS 4.7) in FortiManager allowing administrators to bypass workflow session email approval via crafted HTTP requests.

Fortinet advisory FG-IR-26-171 covers an improper access control vulnerability (CWE-284) in FortiManager, rated CVSSv3 4.7. An administrator can bypass the approval process for workflow sessions via crafted HTTP or HTTPS requests. The advisory was revised on 2026-09-08.

Fortinet PSIRT·Sep 8, 07:00 UTC · 8d agoAdvisory

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Off Guard: Breaking LiteLLM from authentication bypass to cloud compromise

Wiz found LiteLLM auth bypass (CVE-2026-59822) and post-auth RCE (CVE-2026-59821) chainable to cloud compromise; the bypass is in CISA KEV with in-the-wild exploitation.

Wiz scanned roughly 3,074 internet-facing LiteLLM deployments and found 9.6% accepted the default master key sk-1234 or required no authentication, making post-auth attacks effectively pre-auth. The MCP endpoint accepts any Bearer token and grants a valid session (CVE-2026-59822), confirmed exploited in the wild via honeypots and added to CISA's Known Exploited Vulnerabilities catalog. Custom code guardrails allow post-auth root-level RCE via exec(compile(...)) (CVE-2026-59821), while pass-through endpoints lack URL validation, enabling cloud credential theft in post-auth scenarios. All assigned vulnerabilities have been patched; the research was presented at DEF CON 34.

Wiz Blog·Sep 9, 16:06 UTC · 7d agoExploit / PoC in the wildCVE-2026-59822CVE-2026-598211

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sk185169 - CVE-2026-16232 - Authentication bypass with SmartConsole ...

Check Point issued a high-severity alert for CVE-2026-16232, an authentication bypass in the SmartConsole login process via application token.

Check Point published support article sk185169 describing CVE-2026-16232, an authentication bypass affecting the SmartConsole login process when using application tokens. The vendor rates the issue High. The brief advisory text provides no exploitation details, CVSS score, or affected-version list.

Web discovery (articles for new exploits & KEV entries)·Sep 8, 09:04 UTC · 8d agoVulnerabilityCVE-2026-16232

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CVE-2026-75156: Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider flaw (CVE-2026-75156) lets attackers bypass Azure AD OAuth token validation via unvalidated issuer and audience claims.

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD id_tokens during OAuth login, enabling cross-tenant authentication bypass. The issue affects deployments where the FAB auth manager is configured with Azure AD as an OAuth provider. A fix is available in version 3.8.1. Severity is rated moderate.

oss-security·Sep 8, 16:37 UTC · 8d agoVulnerabilityCVE-2026-75156

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[webapps] miniOrange 5.4.3 - Unauthenticated Auth Bypass

A proof-of-concept exploit for an unauthenticated authentication bypass in miniOrange 5.4.3 has been published on Exploit-DB.

Exploit-DB lists a public proof-of-concept exploit for an unauthenticated authentication bypass in miniOrange 5.4.3. The flaw allows attackers to bypass authentication without credentials. No in-the-wild exploitation or CVE identifier is stated in the listing.

Exploit-DB·Sep 1, 00:00 UTC · 16d agoExploit / PoC

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CVE-2026-16232: Checkpoint Quantum Security Management auth bypass ...

Attackers exploit Check Point SmartConsole authentication bypass CVE-2026-16232 to take over Quantum Security Management firewall servers; CISA added it to KEV.

CVE-2026-16232 is an authentication bypass (CWE-287) in the SmartConsole login process of Check Point Quantum Security Management, exploitable via an application token. Disclosed July 22, 2026, it was added to CISA's Known Exploited Vulnerabilities catalog the same day with remediation due July 25. Rapid7, Check Point Research and other vendors confirmed exploitation in the wild, and a public PoC was released. A workaround is available, and federal agencies must comply with BOD 26-04 patching guidance.

Web discovery (articles for new exploits & KEV entries)·Sep 5, 08:03 UTC · 11d agoExploit / PoC in the wildCVE-2026-16232

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[20260807] - Core - MFA Authentication Bypass

Joomla fixed CVE-2026-73337, an MFA authentication bypass caused by insufficient state checks, affecting Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2.

Joomla security advisory 20260807 describes CVE-2026-73337, an authentication bypass in Joomla CMS multi-factor authentication. Insufficient state checks create a vector that allows 2FA checks to be bypassed; the vendor rates the impact as high with moderate probability. Affected versions are 4.0.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by bloman and Matej Rada on 2026-07-25.

Joomla Security Centre·Aug 17, 14:00 UTC · Aug 17, 2026AdvisoryCVE-2026-73337

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CVE-2026-86206, CVE-2026-86207: N-able N-central Authentication Bypass (FIXED)

Rapid7 disclosed two chained N-able N-central flaws, CVE-2026-86206 and CVE-2026-86207, enabling unauthenticated admin account creation; patched in 2026.3 Hotfix 3.

Rapid7 researchers found CVE-2026-86206 (semicolon/Forwarded access-control bypass, CWE-791, CVSSv4 6.9) and CVE-2026-86207 (UserTwoFactorLogin authentication bypass, CWE-305, CVSSv4 7.7) in the latest N-able N-central. Chained, they let a remote unauthenticated attacker create an attacker-controlled System administrator account. The bugs stem from Envoy and Jetty disagreeing on the requested path and whether the client is local. N-able patched both in N-central 2026.3 Hotfix 3, following the earlier CVE-2026-18577 authentication bypass.

Rapid7 Blog·Sep 8, 11:01 UTC · 8d agoVulnerabilityCVE-2026-86206CVE-2026-86207CVE-2026-18577

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RightCrowd Pass unifies mobile, physical, and biometric credentials

RightCrowd launched Pass, a credentialing platform unifying mobile, physical, and biometric access credentials, cutting credential revocation from 12.2 minutes to under 60 seconds.

RightCrowd announced Pass, a solution that issues and manages mobile, physical, and biometric access credentials from a single platform instead of fragmented badge programs. Mobile credentials are provisioned through a web-based API and can be suspended or revoked individually or in groups in under 60 seconds, versus an average 12.2 minutes for handling a lost or damaged physical badge. Each mobile credential is tied to a device via two-factor authentication, works with HID, Wavelynx, and LEGIC infrastructure, and counts toward LEED and BREEAM sustainability credits. The product is available now to new and existing customers and can be added to current RightCrowd SmartAccess deployments.

Help Net Security·Aug 26, 00:00 UTC · 22d agoTools

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Researcher Drops New Microsoft Defender PoC Showing ShieldBreak Patch Can Be Bypassed

Researcher Chaotic Eclipse released a PoC showing CVE-2026-69414's patch is bypassable, allowing arbitrary file reads as SYSTEM on current Windows.

The researcher known as Chaotic Eclipse published a proof-of-concept for a zero-day in Microsoft Defender, dubbed ShieldCrash, assessed as a patch bypass for ShieldBreak (CVE-2026-69414, CVSS 7.8). The PoC demonstrates an arbitrary file read as SYSTEM with the latest Windows installed, and all supported desktop versions are said to be impacted. Microsoft patched the original issue in Microsoft Malware Protection Engine 1.1.26080.3, which updates automatically. The same researcher recently released PoCs for flaws in CrowdStrike Falcon Sensor, Kaspersky, Avast Antivirus and NVIDIA.

The Hacker News·Sep 9, 06:47 UTC · 7d agoExploit / PoCCVE-2026-694141

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LiteLLM Flaws Let Attackers Execute Code as Root and Steal Cloud Credentials

Wiz disclosed LiteLLM flaws including CVE-2026-59822 MCP auth bypass, now in CISA KEV, enabling root RCE and AWS credential theft from exposed gateways.

Wiz researchers disclosed weaknesses in the open-source LiteLLM AI gateway: CVE-2026-59821 allows authenticated administrators to execute code as root via the Custom Code Guardrails feature, while CVE-2026-59822 is an MCP authentication bypass where a meaningless Bearer token establishes a valid session. The MCP bypass was observed in the wild through Wiz honeypots and added to CISA's Known Exploited Vulnerabilities catalog on September 2. A scan of 3,074 internet-facing instances found 294 (9.6%) accepting the default master key sk-1234 or lacking authentication. Fixes shipped in LiteLLM 1.82.0 (guardrail hardening) and 1.84.0 (MCP bypass); exposed instances can leak provider API keys and temporary AWS IAM credentials via the pass-through feature and metadata service, with a related config-check issue tracked as CVE-2026-35029.

Cyber Security News·updated Sep 10, 12:56 UTC · 6d ago·first Sep 10, 12:26 UTC · 6d agoExploit / PoC in the wild 3 sourcesCVE-2026-59821CVE-2026-59822CVE-2026-35029

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Cisco Secure Firewall Management Center Software Authentication Bypass Vulnerability

Cisco warns of a critical authentication bypass in Secure Firewall Management Center that lets unauthenticated attackers execute scripts and obtain root access.

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software allows an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. The flaw stems from an improper system process created at boot time and is triggered via crafted HTTP requests. If the FMC management interface does not have public internet access, the attack surface is limited.

Cisco Security Advisories·Sep 9, 16:00 UTC · 7d agoAdvisory 2 sourcesCVE-2026-20079

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Wordfence Argus Finds Critical Authentication Bypass in WPMU DEV Dashboard Plugin

Wordfence researchers disclosed a critical unauthenticated authentication bypass in the WPMU DEV Dashboard plugin, enabling admin takeover and possible RCE.

During internal research on August 19, 2026, Wordfence discovered an authentication bypass in the WPMU DEV Dashboard WordPress plugin, which has roughly 350,000 active installations. Unauthenticated attackers can gain administrator access when Hub Single-Sign On is enabled, enabling complete site takeover. If an administrator-writable code mechanism such as the plugin or theme editor is available, the flaw can lead to remote code execution.

Wordfence·Aug 27, 17:41 UTC · 20d agoVulnerability

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SimpleHelp OpenID Connect Auth Bypass to RCE [CVE-2026-48558]

Metasploit adds a module chaining SimpleHelp OpenID Connect authentication bypass to remote code execution, tracked as CVE-2026-48558.

A commit to the Rapid7 Metasploit Framework (dee04cdb) adds an exploit module for CVE-2026-48558, an OpenID Connect authentication bypass in SimpleHelp that can be escalated to remote code execution. SimpleHelp is widely deployed remote access and remote support software, making the auth bypass a serious exposure for exposed deployments. The commit provides public exploit code but the listing does not state observed exploitation.

Metasploit Framework commits·Sep 1, 20:43 UTC · 15d agoExploit / PoCCVE-2026-485581

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Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed active exploitation of CVE-2026-20079, a CVSS 10.0 authentication bypass enabling unauthenticated root command execution in Secure FMC; CISA added it to KEV.

Cisco confirmed in August 2026 that CVE-2026-20079 (CVSS 10.0), an unauthenticated authentication bypass in Secure Firewall Management Center, is being actively exploited, allowing remote attackers to execute scripts and commands as root via crafted HTTP requests to the web interface. CISA added the flaw to its Known Exploited Vulnerabilities catalog, ordering federal civilian agencies to patch by September 12, 2026. Shared IOCs, identical hot fixes, and a July 23 log entry suggest CVE-2026-20079 was used alongside the separately exploited static-credential flaw CVE-2026-20316 in the same attacks. Cisco released patches and cloud fixes, warns hot fixes do not remediate already-compromised devices, and says there are no workarounds.

BleepingComputer·Sep 9, 21:40 UTC · 7d agoExploit / PoC in the wildCVE-2026-20079CVE-2026-20316

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Cisco BroadWorks CommPilot Application Software Authorization Bypass Vulnerability

Cisco patched a BroadWorks CommPilot authorization bypass letting low-privileged authenticated users alter device configurations via crafted HTTP requests.

A vulnerability in the web-based management interface of Cisco BroadWorks CommPilot Application Software is caused by missing authorization checks. An authenticated remote attacker with low privileges can send crafted HTTP requests to alter configurations on select pages. Cisco has released software updates and no workarounds are available.

Cisco Security Advisories·Sep 16, 16:00 UTC · 13h agoAdvisory

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Three Critical VMware Flaws Allow Auth Bypass, Code Execution, and VM Escape

Broadcom patches three critical VMware flaws, including vCenter auth bypass CVE-2026-59309 and an ESX VM escape, urging immediate updates.

Broadcom issued emergency updates for VMware ESX, vCenter, Workstation and Fusion, fixing five flaws including CVE-2026-59309 (CVSS 9.8 authentication bypass in vCenter) and CVE-2026-59310 (CVSS 9.8 directory traversal allowing code execution). CVE-2026-47876 (CVSS 9.3) is an out-of-bounds write in the ESX VMXNET3 adapter that permits a virtual machine escape to the host. Broadcom found no evidence of exploitation, but Defused Cyber reported a spike in vCenter scanning on August 11, 2026 consistent with exploitation attempts against CVE-2026-59309 (VMSA-2026-0006). No workarounds are available.

The Hacker News·Aug 11, 15:42 UTC · Aug 11, 2026VulnerabilityCVE-2026-59309CVE-2026-59310CVE-2026-47876+2 CVEs1

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ZDI-26-534: (Pwn2Own) Microsoft Exchange Capture-Replay Authentication Bypass Vulnerability

Pwn2Own-demoed CVE-2026-62911 capture-replay authentication bypass in Microsoft Exchange allows unauthenticated remote attacks, CVSS 8.1.

ZDI-26-534 describes a capture-replay authentication bypass vulnerability in Microsoft Exchange, demonstrated at Pwn2Own, allowing remote attackers to bypass authentication without credentials. ZDI assigned a CVSS score of 8.1, and the flaw is tracked as CVE-2026-62911. Exchange servers are widely deployed enterprise mail infrastructure.

ZDI Published Advisories·Aug 11, 05:00 UTC · Aug 11, 2026VulnerabilityCVE-2026-62911

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Cisco Identity Services Engine Authorization Bypass Vulnerabilities

Cisco fixed authorization bypass flaws in ISE and ISE-PIC web management letting authenticated admins modify file descriptions via crafted HTTP requests.

Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine and ISE Passive Identity Connector result from missing server-side validation of Administrator permissions. An authenticated remote attacker with valid Administrator credentials can submit crafted HTTP requests to modify descriptions of files on specific pages. Cisco has released software updates addressing the issues.

Cisco Security Advisories·Sep 16, 16:00 UTC · 13h agoAdvisory 15 sources

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Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490)

Citrix patched a critical authentication bypass, CVE-2026-19490, in NetScaler Gateway and NetScaler ADC, urging customers to upgrade immediately.

Citrix has patched two flaws in NetScaler ADC and NetScaler Gateway. CVE-2026-19490 is a critical authentication bypass (CVSS v4.0 9.3) that works when the appliance is configured as an SSL VPN, ICA Proxy, CVPN, RDP Proxy Gateway or AAA virtual server, with additional conditions depending on firmware and SAML configuration. A second flaw, CVE-2026-19489 (CVSS 8.8), is a memory overflow that can cause denial of service when SIP ALG is enabled on LSN setups. Rapid7 had not observed exploitation as of August 19, 2026, but urged emergency patching; a signature-based mitigation is available via NetScaler Console.

Help Net Security·Aug 21, 00:00 UTC · 27d agoVulnerabilityCVE-2026-19490CVE-2026-19489

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CVE-2026-86465: Apache Airflow Akeyless provider: Akeyless secrets backend: team-scope guard bypass via user-controlled key

Apache Airflow Akeyless provider before 0.3.1 lets DAG authors bypass team-scope guards and read other teams' secrets.

CVE-2026-86465 (moderate) affects apache-airflow-providers-akeyless before 0.3.1. The Akeyless secrets backend's team-scope guard can be bypassed with a user-controlled key: in multi-team deployments, a DAG author scoped to one team can supply a Variable key containing a path separator that resolves a secret belonging to another team.

oss-security·Sep 15, 20:03 UTC · 1d agoVulnerabilityCVE-2026-86465

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Check Point security advisory (AV26-902)

Canada's Cyber Centre issued advisory AV26-902 warning of two Check Point RCE flaws, including VPN authentication bypass CVE-2026-85102.

The Canadian Centre for Cyber Security released advisory AV26-902 on September 9, 2026, covering vulnerabilities in Check Point Security Gateway, Spark Firewall with Site-to-Site or Remote Access VPN, and Security Management Server across multiple versions. CVE-2026-85102 is an authentication bypass and remote code execution flaw in Remote Access and Site-to-Site VPN, while CVE-2026-85103 is an ASN.1 decoding heap overflow enabling remote code execution. Administrators are urged to review the linked advisories and apply updates as they become available.

Canadian Centre for Cyber Security·Sep 9, 19:30 UTC · 7d agoAdvisoryCVE-2026-85102CVE-2026-85103

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ShieldCrash PoC: Microsoft Defender Fix Bypass

A ShieldCrash proof-of-concept bypasses Microsoft's patch for CVE-2026-69414, a high-severity elevation-of-privilege flaw in the Microsoft Malware Protection Engine.

Microsoft previously fixed CVE-2026-69414 (ShieldBreak), a high-severity elevation-of-privilege vulnerability in the Microsoft Malware Protection Engine used by Microsoft Defender. SOCRadar now reports a new proof-of-concept dubbed ShieldCrash demonstrating that the published fix can be bypassed. The available source text does not detail affected versions or whether the bypass has been used in real attacks.

SOCRadar·Sep 10, 12:18 UTC · 6d agoExploit / PoC 2 sourcesCVE-2026-69414

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Attackers Exploit PaperCut Flaws to Steal Credentials From Schools and Universities

Attackers exploit newly disclosed PaperCut auth bypass CVE-2026-81578 and RCE CVE-2026-82078 to steal credentials from schools and universities in the US and Europe.

Arctic Wolf observed threat actors chaining CVE-2026-81578 (authentication bypass) and CVE-2026-82078 (remote code execution) in PaperCut to execute commands, perform reconnaissance, and create privileged accounts on servers at K-12 schools and universities in the US and Europe. Post-exploitation includes registry hive collection with lsa_collect.exe delivered via certutil, Meterpreter Java payloads from 194.180.48.134, and searches of PaperCut config files for passwords, LDAP bindings, and tokens. Stolen logins could provide a pathway into other critical systems across compromised environments.

The Hacker News·Sep 5, 07:31 UTC · 11d agoExploit / PoC in the wildCVE-2026-81578CVE-2026-820781

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Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Object Group Access Control List Bypass Vulnerabilities

Cisco patched ACL Object Group Search bypass flaws in ASA and FTD firewall software that let unauthenticated attackers reach protected networks.

Cisco disclosed multiple vulnerabilities in the ACL Object Group Search implementation of Secure Firewall ASA and FTD Software, caused by a logic error in populating group access control policies. An unauthenticated remote attacker could send traffic that should be blocked through the device, bypassing configured access controls. Cisco has released software updates; no exploitation is mentioned.

Cisco Security Advisories·Sep 16, 16:00 UTC · 13h agoAdvisory 9 sources

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CVE-2026-82431: Apache Storm Client: Authorization Bypass When nimbus.groups Is Configured Without nimbus.users

Apache Storm Client 3.0.0 ACL bypass lets every authenticated principal bypass restrictions when nimbus.groups is set without nimbus.users.

CVE-2026-82431 affects Apache Storm Client (org.apache.storm:storm-client) versions 3.0.0 before 3.1.0. SimpleACLAuthorizer returned early when nimbus.users was empty, before evaluating nimbus.groups. Operators restricting cluster access by group alone received no restriction, so any authenticated principal could execute user-level commands. Fixed in version 3.1.0.

oss-security·Sep 13, 14:28 UTC · 3d agoVulnerabilityCVE-2026-82431

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Cursor Security Bug Allowed Repositories to Execute Commands Before Trust Verification

Cursor fixed a pre-trust bug letting untrusted repositories execute commands, then closed the report as informative.

A security flaw in the Cursor editor allowed repositories to execute commands before the user completed workspace trust verification. Cursor fixed the pre-trust code execution path within three days of receiving the report. The vendor then closed the report as informative, disputing the severity of the behavior.

Infosecurity Magazine·Aug 11, 14:30 UTC · Aug 11, 2026Vulnerability

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CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA added four actively exploited vulnerabilities—Fortinet buffer overflow, Citrix NetScaler and Cisco auth bypasses, and a Chromium V8 write—to the KEV Catalog.

CISA added CVE-2025-25249 (Fortinet heap-based buffer overflow), CVE-2026-19490 (Citrix NetScaler authentication bypass), CVE-2026-87491 (Google Chromium V8 out-of-bounds write), and CVE-2026-20079 (Cisco Firewall Management Center authentication bypass) to its Known Exploited Vulnerabilities Catalog based on evidence of active exploitation. Under Binding Operational Directive 26-04, Federal Civilian Executive Branch agencies must prioritize rapid remediation of these high-risk vulnerabilities on exposed assets and verify whether systems were compromised before patching. CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV Catalog remediation.

CISA Advisories·Sep 9, 12:00 UTC · 7d agoExploit / PoC in the wildCVE-2025-25249CVE-2026-19490CVE-2026-87491+1 CVEs

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